Linda Lamone, state administrator of the Maryland state Board of Elections, confirmed the injunction and said the attorney general argued against it. She told 11 News that two precincts opened more than an hour late and 12 opened less than one hour late.

Political experts said Edwards needs the African-American vote in Baltimore City to win the primary. Edwards is running against Rep. Chris Van Hollen and eight other challengers in the Democratic primary.

"All citizens deserve equal rights and access to the polls," Van Hollen spokeswoman Bridgett Frey said in a statement. "It is essential to our democracy that our election process be fair to all Marylanders. Our goal is to ensure that all of our fellow citizens have the full and unrestricted right to participate in free elections."